C++ impact and status on Exercism

C++

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C++ Track Management

This page provides the Exercism community with the information and tools needed to manage the C++ track.

Students

131,920

Submissions

1,645,423

Mentoring Discussions

12,771

The C++ track needs attention ⚠️

Building

C++ syllabus

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Help create the track syllabus: is a set of concepts and learning exercises put together to teach foundational elements of the programming language.

Next goal: Create a complete syllabus with at least 20 concepts. Find out more.

17 concepts being taught

Includes

6,598 learnt

Strings

6,598 learnt

Basics

12,244 learnt

Numbers

4,860 learnt

Namespaces

7,897 learnt

Booleans

8,223 learnt

Comparisons

4,158 learnt

If Statements

4,158 learnt

Arrays and Vectors

2,445 learnt

Loops

3,408 learnt

Classes

2,875 learnt

References

1,899 learnt

Enumerations

2,105 learnt

Switch Statements

2,105 learnt

Headers

1,328 learnt

Functions

889 learnt

Pointers

137 learnt

14 active learning exercises

Started

Attempts

Completions

Mentoring requests

Log Levels

9,500

69,686 (avg. 7.3)

6,598 (69.5%)

178 (1.9%)

Lasagna

16,947

70,952 (avg. 4.2)

12,244 (72.2%)

206 (1.2%)

Freelancer Rates

5,530

47,589 (avg. 8.6)

4,860 (87.9%)

61 (1.1%)

Last Will

9,561

54,837 (avg. 5.7)

7,897 (82.6%)

106 (1.1%)

Pacman Rules

9,023

48,960 (avg. 5.4)

8,223 (91.1%)

88 (1.0%)

Vehicle Purchase

4,385

27,911 (avg. 6.4)

4,158 (94.8%)

37 (0.8%)

Making the Grade

2,968

49,893 (avg. 16.8)

2,445 (82.4%)

76 (2.6%)

Interest is interesting

3,680

26,823 (avg. 7.3)

3,408 (92.6%)

37 (1.0%)

Ellen's Alien Game

3,134

22,874 (avg. 7.3)

2,875 (91.7%)

39 (1.2%)

Election Day

2,107

23,345 (avg. 11.1)

1,899 (90.1%)

36 (1.7%)

Troll the Trolls

2,338

22,068 (avg. 9.4)

2,105 (90.0%)

50 (2.1%)

Doctor Data

1,694

24,170 (avg. 14.3)

1,328 (78.4%)

32 (1.9%)

lasagna-master

1,067

14,639 (avg. 13.7)

889 (83.3%)

14 (1.3%)

Speedywagon Foundation

183

1,812 (avg. 9.9)

137 (74.9%)

1 (0.5%)

Practice Exercises

Learn More

Practice Exercises are exercises designed to allow students to solve an arbitrary problem, with the aim of them making use of the concepts they have learned so far.

Synced primary repo: acc32555eab077cf786f892b6ab27a22184d81c7 (Updates should be instant)

Next goal: Implement 133 practice exercises. Find out more.

82 active practice exercises

Started

Attempts

Completions

Mentoring requests

Hello World

96,984

260,832 (avg. 2.7)

49,939 (51.5%)

12 (0.0%)

Leap

23,656

98,410 (avg. 4.2)

12,279 (51.9%)

2,523 (10.7%)

Reverse String

13,448

87,688 (avg. 6.5)

8,597 (63.9%)

1,507 (11.2%)

Space Age

8,398

65,949 (avg. 7.9)

4,160 (49.5%)

1,136 (13.5%)

Triangle

5,706

41,250 (avg. 7.2)

3,434 (60.2%)

768 (13.5%)

Grains

3,941

27,236 (avg. 6.9)

3,166 (80.3%)

599 (15.2%)

Raindrops

6,650

45,683 (avg. 6.9)

5,439 (81.8%)

634 (9.5%)

Pangram

3,207

23,261 (avg. 7.3)

2,552 (79.6%)

490 (15.3%)

Two Fer

2,944

11,923 (avg. 4.0)

2,452 (83.3%)

85 (2.9%)

Grade School

3,255

29,860 (avg. 9.2)

2,112 (64.9%)

232 (7.1%)

Hamming

4,774

13,909 (avg. 2.9)

3,867 (81.0%)

364 (7.6%)

Nucleotide Count

3,231

16,940 (avg. 5.2)

2,379 (73.6%)

280 (8.7%)

RNA Transcription

2,505

12,663 (avg. 5.1)

2,061 (82.3%)

171 (6.8%)

Collatz Conjecture

2,084

9,640 (avg. 4.6)

1,752 (84.1%)

54 (2.6%)

Difference of Squares

3,548

11,426 (avg. 3.2)

3,099 (87.3%)

179 (5.0%)

Nth Prime

2,325

15,787 (avg. 6.8)

1,555 (66.9%)

136 (5.8%)

Queen Attack

1,998

15,890 (avg. 8.0)

1,311 (65.6%)

114 (5.7%)

Sieve

1,938

10,991 (avg. 5.7)

1,554 (80.2%)

129 (6.7%)

Say

1,656

14,253 (avg. 8.6)

912 (55.1%)

119 (7.2%)

Gigasecond

2,913

6,001 (avg. 2.1)

1,984 (68.1%)

255 (8.8%)

Secret Handshake

1,349

7,067 (avg. 5.2)

1,099 (81.5%)

50 (3.7%)

Allergies

2,225

16,127 (avg. 7.2)

1,465 (65.8%)

93 (4.2%)

Protein Translation

1,406

8,908 (avg. 6.3)

1,161 (82.6%)

50 (3.6%)

Sum of Multiples

1,688

6,365 (avg. 3.8)

1,296 (76.8%)

71 (4.2%)

Prime Factors

1,477

5,716 (avg. 3.9)

1,192 (80.7%)

51 (3.5%)

Robot Name

1,603

10,716 (avg. 6.7)

1,112 (69.4%)

115 (7.2%)

Clock

1,175

6,532 (avg. 5.6)

677 (57.6%)

54 (4.6%)

Meetup

930

3,153 (avg. 3.4)

513 (55.2%)

25 (2.7%)

Beer Song

998

6,106 (avg. 6.1)

761 (76.3%)

35 (3.5%)

Atbash Cipher

2,000

31,765 (avg. 15.9)

1,493 (74.7%)

99 (5.0%)

Trinary

1,779

12,047 (avg. 6.8)

1,550 (87.1%)

36 (2.0%)

Binary Search

1,192

8,458 (avg. 7.1)

819 (68.7%)

41 (3.4%)

Phone Number

1,105

5,423 (avg. 4.9)

791 (71.6%)

42 (3.8%)

Series

840

3,560 (avg. 4.2)

653 (77.7%)

24 (2.9%)

Complex Numbers

1,086

5,839 (avg. 5.4)

676 (62.2%)

25 (2.3%)

Food Chain

980

2,886 (avg. 2.9)

712 (72.7%)

28 (2.9%)

Roman Numerals

896

3,334 (avg. 3.7)

664 (74.1%)

24 (2.7%)

Bob

2,977

20,455 (avg. 6.9)

2,409 (80.9%)

266 (8.9%)

Word Count

1,448

5,542 (avg. 3.8)

1,092 (75.4%)

92 (6.4%)

Circular Buffer

894

6,573 (avg. 7.4)

523 (58.5%)

45 (5.0%)

Crypto Square

745

5,156 (avg. 6.9)

496 (66.6%)

21 (2.8%)

ETL

1,410

3,367 (avg. 2.4)

1,144 (81.1%)

43 (3.0%)

Matching Brackets

1,178

7,206 (avg. 6.1)

939 (79.7%)

36 (3.1%)

Anagram

1,595

4,622 (avg. 2.9)

1,237 (77.6%)

97 (6.1%)

Binary Search Tree

1,123

5,534 (avg. 4.9)

367 (32.7%)

43 (3.8%)

Luhn

1,458

15,543 (avg. 10.7)

1,175 (80.6%)

56 (3.8%)

Acronym

974

4,242 (avg. 4.4)

748 (76.8%)

28 (2.9%)

Armstrong Numbers

1,460

6,708 (avg. 4.6)

1,266 (86.7%)

34 (2.3%)

Binary

1,248

4,584 (avg. 3.7)

996 (79.8%)

84 (6.7%)

Hexadecimal

1,414

6,734 (avg. 4.8)

1,195 (84.5%)

76 (5.4%)

Isogram

2,469

4,705 (avg. 1.9)

1,574 (63.8%)

99 (4.0%)

Pascal's Triangle

871

3,076 (avg. 3.5)

665 (76.3%)

25 (2.9%)

Perfect Numbers

353

2,180 (avg. 6.2)

297 (84.1%)

6 (1.7%)

Scrabble Score

1,204

3,478 (avg. 2.9)

922 (76.6%)

90 (7.5%)

All Your Base

854

4,868 (avg. 5.7)

578 (67.7%)

47 (5.5%)

Robot Simulator

1,242

4,887 (avg. 3.9)

705 (56.8%)

54 (4.3%)

Bank Account

605

2,576 (avg. 4.3)

298 (49.3%)

36 (6.0%)

Darts

1,859

12,157 (avg. 6.5)

1,650 (88.8%)

25 (1.3%)

Largest Series Product

325

2,110 (avg. 6.5)

253 (77.8%)

9 (2.8%)

Isbn Verifier

482

3,386 (avg. 7.0)

366 (75.9%)

12 (2.5%)

Linked List

188

1,466 (avg. 7.8)

106 (56.4%)

6 (3.2%)

Simple linked list

568

4,440 (avg. 7.8)

349 (61.4%)

17 (3.0%)

High Scores

538

4,450 (avg. 8.3)

481 (89.4%)

11 (2.0%)

Eliud's Eggs

622

2,496 (avg. 4.0)

561 (90.2%)

11 (1.8%)

Diamond

177

1,251 (avg. 7.1)

135 (76.3%)

4 (2.3%)

Run-Length Encoding

193

1,958 (avg. 10.1)

155 (80.3%)

4 (2.1%)

Rotational Cipher

617

4,655 (avg. 7.5)

551 (89.3%)

11 (1.8%)

Resistor Color

190

975 (avg. 5.1)

158 (83.2%)

4 (2.1%)

Resistor Color Duo

175

759 (avg. 4.3)

146 (83.4%)

2 (1.1%)

Minesweeper

163

943 (avg. 5.8)

107 (65.6%)

2 (1.2%)

Sublist

126

952 (avg. 7.6)

79 (62.7%)

2 (1.6%)

Zebra Puzzle

114

359 (avg. 3.1)

49 (43.0%)

5 (4.4%)

List Ops

161

1,735 (avg. 10.8)

94 (58.4%)

3 (1.9%)

Knapsack

119

714 (avg. 6.0)

69 (58.0%)

2 (1.7%)

Two Bucket

111

331 (avg. 3.0)

55 (49.5%)

1 (0.9%)

Yacht

141

1,180 (avg. 8.4)

101 (71.6%)

0 (0.0%)

Kindergarten Garden

427

3,470 (avg. 8.1)

314 (73.5%)

9 (2.1%)

D&D Character

197

1,345 (avg. 6.8)

122 (61.9%)

1 (0.5%)

Spiral Matrix

121

706 (avg. 5.8)

74 (61.2%)

4 (3.3%)

Parallel Letter Frequency

159

668 (avg. 4.2)

85 (53.5%)

4 (2.5%)

Pig Latin

143

1,183 (avg. 8.3)

73 (51.0%)

4 (2.8%)

Rail Fence Cipher

545 (avg. 6.5)

52 (61.9%)

2 (2.4%)

51 unimplemented practice exercises

Affine Cipher

Alphametics

Book Store

Bottle Song

Bowling

Change

Connect

Conway's Game of Life

Custom Set

Dominoes

DOT DSL

Error Handling

Flatten Array

Forth

Go Counting

Grep

Hangman

House

Killer Sudoku Helper

Ledger

Lens Person

Markdown

Matrix

Micro Blog

OCR Numbers

PaaS I/O

Palindrome Products

Poker

POV

Proverb

Pythagorean Triplet

Rational Numbers

React

Rectangles

Resistor Color Trio

REST API

Saddle Points

Satellite

SGF Parsing

Simple Cipher

Square Root

State of Tic-Tac-Toe

Strain

Tournament

Transpose

Tree Building

Twelve Days

Variable Length Quantity

Word Search

Wordy

Zipper

1 foregone practice exercise

Point Mutations

View data

Programming Tags

Learn More

Help manage the tags used to group, filter and recommend solutions, approaches and articles.

0 tags

Test Runner

Learn More

Create Test Runners that have the single responsibility of taking a solution, running all tests and returning a standardized output.

Current version: fa924a0b0728c894eacbeabe6b9656ec62416b66 (Takes up to 10 mins to deploy)

Total Test Runner Runs

1,607,887

Test Run Pass Rate

16.6% (266381)

Test Run Fail Rate

24.1% (387936)

Test Run Error Rate

59.3% (953570)

Representer

Learn More

Build a Representer: a bit of code that has the single responsibility of taking a solution and returning a normalized representation of it.

Current version: 29eab0a802586f7bc346f598a1ca98a74deb7547 (Takes up to 10 mins to deploy)

Total Representer Runs

288,925

Total Representation Comments Made

46,836

Feedback Given Frequency

16.2%

Analyzer

Learn More

Build an Analyzer for C++: Exercism's analyzers automatically assess student's submissions and provide mentor-style commentary.

Next goal: Build an Analyzer. Find out more.

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The C++ track needs attention ⚠️

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